System Specific Shared Objects

The dynamic tokens $OSNAME, $OSREL, $PLATFORM and $MACHINE are expanded at runtime
to provide system specific information. These tokens are available for filters, runpath,
or dependency definitions.

$OSNAME expands to reflect the name of the operating system, as displayed
by the utility uname(1) with the -s option. $OSREL expands to reflect
the operating system release level, as displayed by uname -r. $PLATFORM expands to
reflect the underlying platform name, as displayed by uname -i. $MACHINE expands to reflect
the underlying machine hardware name, as displayed by uname -m.

The following example shows how the auxiliary filter libfoo.so.1 can be designed
to access a platform specific filtee libbar.so.1.